Grading-machine



0. E. MOATS, J. B. RHODES ND J. D.KBENB0W.

GRAmNGYMACHlNE.

APPLICATION FILED AUG.13, 1919.

Patented Nov. 2, 1920..

4 SHEETS-SHEET l.

mIfIIIIIHLIIIIIaIl 0. E. MOATS, J. B. RHODES AND 1. D. BENBW.

` GRADING MACHINE.

. APPLICATION FILED Auala. 1919.

Patented Nov. 2, 1920.

v 4 SHEETS-SHEET 2 0. E. MOATS, J. B. RHODES AND J. D. BENBOW. GRADINGMACHINE.

.APPLICATION FILED Aue. I3, 1919.

I 1,357,245. Patented Nov. 2,1920.

4 SHEETS-SHEET 3.

0. E. MOATS, 1. B. RHODES AND J. D. BENBOW.

GRADING MACHINE.

APPLICATION FILED AUG. lSi 1919.

l PatentedvNov. 2, 1920. i

4 SHEETS-SHEET ,4.

UNITED STATES, emulator-rica.

earns n. Moers, or einer-leo, inzit-rois, .rer n. Briones'. oriataivmzooyi/HCHIGAN Ann Jarras n. v nnivncw, or AURORA, rLLiirois,essien-ons fro WESTERN' Nois.

0R11; ILLINOIFSy A GORGRATION'F ILLI- GRADINGMACHINE.

i esmas.

Specification of Letters Patent.

Application filed August 13, 1919. Serial 1105312174.

of Michigan anddAMns l). BnNnow; a citi- Zen of the nited States, and aresident of Aurora; in the county of Kane and State of Illinoisj haveinvented certain new and useful Improvements in Gracling-l/lachines; ofwhich the following is a specification; reference being had to theaccompanying drawings.

Qur invention relates to road or grading machines of the type comprisinga wheeled iframe and a scraper mounted under` the frame and arranged tobe swung laterally and also to be adjusted angularly to the line ofdraft. lt has for, its primaiy object to provide a road machine withdirigible rear wheels mounted so that they may be shifted laterally withreference to the inachine frame for the purposeoit` holding the scraperto its work when set in an angular position, and also 'for aiding inguiding the machine and varying the operating position of the scraper.Another object is to provide such a machine with means independent otthe machine trame for steering such dirigible wheels` Vte accomplishthese objects as illustrated in the accompanying drawings and ashereinafter described. lNhat we regard as new is set forth in theclaims.

ln the accompanying drawings;- N

VFigure 1 is a side elevation of the principal parts of a scraperembodying ourA invention, the wheels at the near side of the machinebeing omitted;

Fig. 2 is an enlarged detail, being v`a paitial horizontal section online 2v2 of Fig. 5; Fig. 3 is a partial plan view of the rear portion ofthe machine traine showingl the rear axle and the parts associatedtherewith; y y

Fig. l is a rear elevation oit the parts shown in Fig. 3;

Fig. 5 is an enlarged detail; being a partial vertical cross-section online 5-5 of Fig. 4; y i y Fig. 6 is an enlarged detail, being a partialvertical sectionionlineG-G of Fio..` 5;

-liig. 7 is a partial plan view showing a .different torni 'of lockingdevice for locking the steering mechanism;`

Fig. is. a rear `elevation of the parts shown in Fig. '7;and f u Fig. 9is a partial longitudinal section on line 9- 9 ofliig. 8. i

ln the embodiment of our invention illustrated in the drawings,l7indicates the ma! chine frame which is supported upon front wheels 8 andrear wheels 9. 10 indicates the usual scraper supporting frame whichcarries a scraper blade 11. These partsy may be constructed and arrangedin any approved way which will providefor angular adjustment ol thescraper blade and also for its being swung laterally; and raised andlowered. The` usual practice is to pivotally connect the forward end ofthe scraper supporting 'frame 10 to the machine frame so that it may beraised or lowered. or swung laterally, and to connect the scraperblade11 with the scraper support` ing frame 10 by means of a turntable 12which may be rotated to vary the angular position of the blade. Suitabledevices are mounted on the machine Viframe T for effecting the severaladjustments, and in the illustration we have shown a shaft 13 `providedwith a hand wheel 1li for rotating the turntable 12,'and a transverselymounted rack `bar 15 and pinion 16 operated by a shaft' Patented N ov.2; 1921); f

vention is concerned it is not essential that the devices shown foraccomplishing the several adjustments or' the scraper blade be used, asany other suitable means for the purpose may be employed. y

23 indicates a platiormprovided at the rear end portion or the machineframe, as shown in Figs. 1 and 3. 211 indicates the; rear aXle of themachine, which-is preferlos ably composed of oppositely arranged chan`nel beams 25-26 connectedby top and bottom plates 27-2S, as shown inFig. 5, and is provided at its ends With yolres or i'orirsV 29 adaptedto receive vertically disposed pivots 56. Mountedupon these pivots; are

sleeves 3i which are connected with the aide at one side thereof, asshown in Fig. 2, and meshing with a pinion '85 mounted upon avertically'arraiiged shaft having Y a hand Wheel 37 by Whichit may berotated, Y

as shovininv Figs.V l and 2. The shait is suitably mounted upon themacliinetraine, preferably by .means of a bracket 38 shown in Figs-l and2, and itj'Will-beapparent that by 'rotating the shaft 86the rack barStand with it the axle 2a Will be moved endivise or transverselyof themachine. is shown in Figa, the rear axle 24 is connected with themachine Vframe by clips or stirriips 39 Which hcldfitfup against theunder side ot the niachine iframe 7, and preferably rollers i0 areprovided between the machine :trame and the i'ipperside oi' the rearaxle to reduce friction, as shown in Figs. 4; and 5. il indicates valongitudinally disposed roch-shaft Which is journaled ina suitablehousing i2 mounted on the rear axle 24;, as shown in Figs. e and 6,beingpreferably connected With said axleby a bracket a3, shown in Fig.`5. Said rock-shaft is provided with an arm @A which is connected by asteering rod 45 with cross-connecting rod i6 which connects the tivoarms 33 at opposite sides oi2 the machineso that the tivorear Wheels areVsteered in unison. vYFreierably the stef-rball and socli'et connectionsyat its ends, as shown in Fig. fi, but any other suitable connectionsmay be employed. .lt Willbe apparent that by roclr- Y ing the rock-shaftil the arm le/i may be sivung laterally, thereby steering the rearWheels through the rod 45. Li7"indicates a segmental rack rigidlyconnected with the armi so as to swing therewith and withtlie'rocl-'shatt Lil. Said racli; is engaged by a latch lever i8vpivotally'mounted on aisiipporting bracket 49 rising from the housing42, as shown in Figs. 5.and 6, and normally held infengaeeineiit withsaid rack` by'a spring 56, as shown in Fig. 5. `This latch serves tohold the rack i7 in the 'different Y positions to which it maybeadjusted', but by depressing the :forward end orp said latch levertheraclr i7 may be released, thereby permit' tingthe rock-shaft@ to berocked. :By this construction the rear Wheels maybe set in `differentpositions'of angular adjustment so that` they will operate to hold thescraper litro ecting rearwardly Worin vi'heel 5l mounted iii the housingi2 and meshing with a Worm 52 carried by a :vertically disposed shaft 53also journaled iii Vthe housing i2 as shown in F ig. 6. This shaftcarries a hand Wheel 54, slioivnin Fig.. 'f-i ehm' --i i T .i 1d;

i, .iy unitn Lt may oe rotated. it siiou ae Vnoted that the devices torsteering the rear Y wheels and for locking such Wheels in position areall carried by the rear aXlev so that` vvhen said axle isadjiisted'endivise .they moveivith it, and the angular position of therear Wheels is consequently not disturbed by the movement endivise ofthe rear axle.

rihese are important `features of our inven-` tion and are claimedbroadly.

F or normally locking the rear axleagainst enclwise movement a lockingbolt 55 is provided, ivhich is mounted to move vertically in the rearportion of the main trame and engages one of a number of holes providedin the upper plate V27 of the rear axle. as shown in F igf5. spring 56serves to exert doivnivardy pressure on the bolt 55, and a foot lever5,77' provides means for readily lifting thebolt 55 out otengageineiitwith` thel rear axle when it is` desired to shift said axle eiidvvise.'in Figs. 7, 8, and 9 is another form of locking device for locking theWheels inthe different positionsftoWhicl'i L v l l f they may beaugust-ed. ln the construction shown in said figures .thecross-connecting rod-i6 carriesv a flocking plateV 58 provided with,VV'series ofA perforations, which plate extends between upper and lowerplate59--60 secured to the underside oit the bracket l-B and arranged toiform a slotted frame, as best shoivnin Fig. 9.*V

i rlhe plates 59, 6C) are provided with aliiied perforations adapted toregister with Vone or` another of the perforations in the plate 58."

so that, a bolt 61 passed hrough the pertorations in the plates 58, 59,60 may serve to lock the plate 58 in'hxcdrelation to they bracket43,`thereby holding-the cross-coin necting rod i6 against endivisevmovement.

The bolt 61vis mounted to move vertically, being held by the plates 59,6() and by a bracket 62 secured tov the' upper side otl theV housing4:2, as best shown in Fig. V8. VThe .iolt is moved ,endvvise by oi'.I a63 mounted on a pivot Get' carried by the ybracket 62, as' shown in FVand coii-Y nected with the upper end oi? said bolt. Thus;

the lever 63 and theother'iiarts of the locking mechanism are' allssorted :the

of the machine, as is thelcasevvitli figures. Y 4 Y l So far as We areaware', Yvve f are theftirst lever L aXle 2&and are independent ottheir-aine,A l Y the'alt'ers Y ynative locking mechanism shown in theotheiginthe art to provide a road machine `having `an endivise movablerear axle with -dirigible rear Wheels carried i by such rear axle andprovided with means independent of the machine frame for steering saidWheels; also to provide means `independent of the frame for locking thewheels in the different positions to `which they may `be adjusted. j Theclaims hereinafter made directed to these features are thereforeintended to he generic. i

-What We claim as our invention and de; sire to secure by LettersPatent, is

l. In a grading machine, the combination with a machine frame, of atransversely movable axle, wheels mounted on said axle andangular-ly'adjustable relatively to the atively to the line of draft, ofa transversely adjustable axle, Wheels mounted on said axle andangularly adjustable relatively to the line of draft, and meansindependent of the machine frame for adjusting said Wheels relatively tothe line of draft. Y

3. In a grading machine, the combination with a machine frame, ascraper, and means for adjusting said scraper angularly relatively tothe line of draft, of a transversely adjustable axle, means mounted onthe machine frame for adjusting said axle end- \vise, Wheels mounted onsaid axle and angularly adjustable relatively to the line of draft, andmeans independent of the machine frame for adjusting said Wheels withrelation to the line of draft.

4L. In a grading machine, the combination with a machine frame, of anendyvise movable axle, wheels mounted on said axle and angularlyadjustable relatively to the line of draft, means for steering saidWheels, and means independent of the machine frame for locking theWheels against angular movement.

5. In a grading machine, the combination with a machine frame, ascraper, and means for adjusting said scraper angularly relatively tothe line of draft, of an endWise movable `axle, Wheels mounted on saidaxle and angularly adjustable relatively to the line of draft, means forsteering said Wheels, and means independent of the machine frame forlocking the Wheels against angular movement.

6. In a grading machine, the combination with a machine frame, of atransversely adjustable axle, Wheels mounted on said axle, and angularlyadjustable relatively to Y the line of draft, and means mounted on saidaxle and independent of the machine fra-me for adjusting said Wheels.

7 In a grading machine, the combination with a machine frame, of atransversely radjustable axle, vvheels mounted on said axle j andangularly adjustably relatively to the line of draft, means for steeringsaid Wheels,

and means 'mounted on said axle and independent of the machine frame forlocking said Wheels against angular movement. Y

S. 4In a grading machine,` the combination with a machine frame, ascraper and means for adjusting said scraper angularly -relatively totheline of draft, of a rear axle movable Vendivise transversely of theinachine, Wheel spindles carried at the ends of said rearaxle andpivoted to turn the Wheels angularly relatively to the line of draft,Wheels mounted onV said spindles, means mounted on the machine frame formoving said axle endivise, and means independent` of the machine framefor angularlyy adjusting said Wheel spindles.

9. In a grading machine, the combination with a machine frame, a scraperand means for adjusting said scraper ,j angularly relatively to the lineof draft, of a rear axle movable endivise transversely of the machine,Wheel spindles carried at the ends of said rear axle and pivoted to turnthe Wheels angularly relatively to the line of draft,

Wheels mounted on said spindles, meansV mounted on the machine frame formoving said axle endwise, and means mounted on the axle and movingtherewith for angu-f larly adjusting said Wheel spindles.

10. In a grading machine, the combination With a machine frame, ascraper and means for adjusting said scraper angularly relatively to theline of draft, of a rear axle movable endivise transversely of themachine, Wheel spindles carried at the ends of said rear axle andpivoted to turn the Wheels angularlyrelatively to the line of draft,Wheels mounted on said spindles, means mounted on the machine frame formoving said axle endwise, and means independentV of the machine framefor locking said Wheel spindles against angular adjustment.

l1. In a grading machine, the combination With a machine frame, ascraper and means for adjusting said scraper angularly relatively to theline of draft, of a rear axle movable endwise transversely of themachine, vvheel spindles carried at the ends of said rear axle andpivoted to turn the Wheels angularly relatively to the line of draft,wheels mounted on said spindles, means mounted on the machine frame formoving said axlek endvvise, and means mounted on the axle and movingtherewith for locking said Wheel spindles against angular adjustment.

l2. In a grading machine, the combination With a machine frame, of atransversely adjustable axle, Wheels mounted on said axle iio andangularly adjustable Vrelatively .to the lineof draft, means mounted onthe machine frame for moving said axle endvvise, land means independentof the machine frame for steering said Wheels, comprising a-rockshafthaving an arm connected With'A the Wheels, and a Worm and Worm Wheel forrocking said rockshaft.

13.. In a grading machine, the combinationV with a machine frame, of atransversely ad- Y justable axle, Wheels mounted onsaid axle andangularly adjustable relatively tothe line of draft, means mounted onthe machine iframe for moving sald axle endWise, and-v means independentof the machine frame for steering said Wheels, comprising a rockshai'thaving an arm connected-*With the Wheels for angularly adjustingthe'same,

' line of draft, means mounted on the'machine frame for moving saidaxleendwise, 4and Vmeans mounted on said axle for steering said Wheels,comprising a rock-shaft having an arm connected With the Wheels forangularly adjusting the same, and means mounted on the axle position.

` oRTUs E. MoATs. .JAY nnnonns.v .JAMES D. BENBOW.

for locking said Wheels in

